I actually DID reach 6000 (with 2 lives, however). I... didn't enjoy it, I just kept on playing to prove you wrong. First of all, there was no 'little loop thingy' you said there would be, which disappointed me, because this game needs music. The sounds got annoying after a while too (and yes, I know there's a mute button). And overall, it's too easy and should contain highscores, because now we're just playing for nothing. And do something about the colors, my eyes burned.
And there's more: try to find an alternative for the triangles, they just won't react with the second click sometimes. Add some upgrades, levels and stuff. Change the textfont, it's barely readable. AND, if this game is in AS3 (since it's, according to Tom, not possible in AS2), add a pause button, I almost pissed my pants.
Lots of work to do, pal. But look at the bright side: what I DIDN'T say were good things. :)